ARM: s3c64xx: convert to MULTI_IRQ_HANDLER

Now that there is a generic IRQ handler for multiple VIC devices use it
for s3c64xx to help building multi platform kernels.

Cc: Ben Dooks <ben-linux@fluff.org>
Tested-by: Thomas Abraham <thomas.abraham@linaro.org>
Signed-off-by: Jamie Iles <jamie@jamieiles.com>
diff --git a/arch/arm/mach-s3c64xx/mach-smdk6400.c b/arch/arm/mach-s3c64xx/mach-smdk6400.c
index 73450c2..be28a59 100644
--- a/arch/arm/mach-s3c64xx/mach-smdk6400.c
+++ b/arch/arm/mach-s3c64xx/mach-smdk6400.c
@@ -22,6 +22,7 @@
 
 #include <asm/mach-types.h>
 
+#include <asm/hardware/vic.h>
 #include <asm/mach/arch.h>
 #include <asm/mach/map.h>
 #include <asm/mach/irq.h>
@@ -88,6 +89,7 @@
 	.atag_offset	= 0x100,
 
 	.init_irq	= s3c6400_init_irq,
+	.handle_irq	= vic_handle_irq,
 	.map_io		= smdk6400_map_io,
 	.init_machine	= smdk6400_machine_init,
 	.timer		= &s3c24xx_timer,